This knowledge is very important when repairing Hoshizaki refrigerators!

The use of Hoshizaki refrigerators can be seen in many catering establishments in Hong Kong. As a Japanese commercial electrical appliance brand, Hoshizaki refrigerators are characterized by energy saving. At the same time, it is inevitable to encounter malfunctions when using refrigerators, so Hong Kong Junhong Electrical Appliance Repair Center will share two cases of repairing Hoshizaki refrigerators, and then explain how to repair refrigerators that are not cooling.

1. The temperature of commercial refrigerators gradually increases

Hong Kong Junhong Electrical Appliance Repair Center has encountered many situations when repairing refrigerators. Among them, if there is no cooling, it can also be divided into faults in the cooling function itself. Another situation is that the cooling function is normal but the temperature inside the cabinet continues to rise. Next, first Let’s talk about the case of repairing a Hoshizaki refrigerator where the temperature inside the cabinet is too high. The repair steps are as follows:

(1) When we find that the temperature inside the refrigerator slowly rises, we must first check whether the sealant edge is aging. The method is to test by clamping a piece of paper. If the paper can be easily pulled out after closing the cabinet door, it means that the sealant edge is aging. Aging requires replacement and vice versa.

(2) If the sealing is not bad, you need to check the evaporator fan to see if the fan is rotating. If the fan is not rotating, the cold air cannot be distributed evenly. When repairing the Hoshizaki refrigerator before, the evaporator fan jammed. Please clean it. Then the problem is solved.

2. Why is the commercial refrigerator not cooling?

In the case of repairing a Hoshizaki refrigerator that I just shared, the fault manifested itself as an increase in the temperature inside the refrigerator, and a more common problem is that the refrigerator is not cooling. Here is another case of repairing a Hoshizaki refrigerator. The problem encountered this time is that the commercial refrigerator is not cooling. Refrigeration.

(1) If the refrigerator is not cooling, first check whether there is a fault in the circuit. Use a multimeter to measure the power supply voltage of the refrigerator, etc., and confirm that there are no abnormalities in the circuit and that it is properly grounded.

(2) The next thing to check is the thermostat and sensor. Compare the values of the thermometer and sensor to confirm whether the temperature sensing is normal.

(3) Then check the compressor and starting capacitor machine. You can judge this from the sound or use a multimeter to measure the capacitance value. If the capacitance value is abnormal, it means that the capacitor machine is faulty, which will also cause the compressor to fail to start. In this regard Replace the capacitor directly.

The above are two cases of repairing Hoshizaki refrigerators. Because commercial refrigerators are used intensively, you need to pay attention to the sound of the compressor and sealing. If you encounter problems, you should ask professionals to repair them immediately to avoid serious faults that may affect the refrigerator. of use.